436424 has 16 divisors (see below), whose sum is σ = 866700. Its totient is φ = 205312.

The previous prime is 436417. The next prime is 436427. The reversal of 436424 is 424634.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 422500 + 13924 = 650^2 + 118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 436424.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 436424.

It is not an unprimeable number, because it can be changed into a prime (436427) by changing a digit.

436424 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1469 + ... + 1740.

2⁴³⁶⁴²⁴ is an apocalyptic number.

It is an amenable number.

436424 is a deficient number, since it is larger than the sum of its proper divisors (430276).

436424 is a wasteful number, since it uses less digits than its factorization.

436424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232 (or 3228 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 436424 is about 660.6239474921. The cubic root of 436424 is about 75.8524375917.

The spelling of 436424 in words is "four hundred thirty-six thousand, four hundred twenty-four".